The Gran Turismo chain tensioner it was designed to provide greater flexibility in the selection of primary transmission ratios, thus being able to use chains with standard lengths of 80, 81, 82 links and obtain the desired primary ratio.
An important advantage of the universal chain tensioner is that it is possible to adjust the tension of the chain without ever screwing and/or unscrewing the fixing screws of the chain tensioner plate on the weak crankcase supports. In fact, the tensioning will take place by sliding the tensioner in the guides specifically created on the mounting plate of the support.
Excellent on every original or tuned Lambretta! It works in both directions: push UP or pull DOWN!
Manufactured by Gran Turismo (UK) with high quality material, fits perfectly to the engine crankcase.